Three blind Maryland residents and the National Federation of the Blind filed the lawsuit in federal court Oct. 25, The Baltimore Sun reports. The lawsuit also says an employee at an Owings Mills location selected cash back from a plaintiff's debit card and took $40 without her knowledge.

The plaintiffs seek a permanent injunction that would bring the self-service kiosks in line with accessibility regulations, a declaration that Walmart has been violating the ADA, court costs and attorneys' fees.

The lawsuit says the federation tried to work with Walmart to address problems before suing.